Vacuum-bottle.



C. F. P. ANDERS.

' VACUUM BOTTLE.

APPLICATION FILED Nov.23. 1910.

l 1 '72,247 Patented Feb. 22, 1916.

u I w TED STATES! PATENT ortica.,

CHARLES F. P. lANDERS, GF HOBOKEN, NEW JERSEY, ASSIGNOR, BY DIRECT AND` MSNE ASSIGNMENTS, TO EUGENE L. GREENEWALD, OF WASHINGTON, DISTRICT OF COLUMBIA.

VACUUM-BOTTLE.

i Specification of Letters Patent. 1

. Patented Feb. 22, 1916.

heatinsulation, thus retaining the heat in" the bottle more eifectively than has been done heretofore.

The novel features of my .invention will-V be apparent from the following description taken in connection with the laccompanying drawings. A

In the drawings, Figure 1 is a .vertical section through the device embodying my invention; Fig. 2 is a vertical section through the outer and inner receptacles before they. are secured together.

' As shown in these drawings, 1 represents the outer wall or receptacle which in this instance is made cylindrical in form having the conical or tapering bottom 2. The inner receptacle 3 is made of substantially the same shape except that it has near its upper end the shoulder 4 .formed-by an outward bend. and leaving what. may be termed the neck of the bottle beyond that bend. As shown in Fig. 2, the two` receptacles or blanks are `.formed separately and a coiled spring 5 made of metal is placed in the tapering portion of the outerreceptacle and Y 3 the taperingend of`the inner receptacle.,

is inserted in the upper coil ofthe spring,

`as showin inFig. l. The upper ends ofthe'V two;l receptacles Aare `then secured orfused together=at 6, so to'jjolrmpn'e complete flamand byehis' consuma@ it wiubek observed that the spring 5 serves'to center 'the inner receptacle 'and to properly support it in position during the uniting operation. I find that when such spring is used in the constructionshown, it is not necessary to haveany other support or connecting means between the outer and inner re# ceptacles and thus the transmission of heat from the outer to theinner receptacle by conduction in the connecting means is re.- duced to a minimum. The two receptacles protection.

Ithe neck and the air is exhausted from this space through the opening 7 which in the beginning is left at the lower point of the Outer receptacle. This opening 7 is of course sealed in the usual way after the air is exhausted.

The upper end of the inner receptacle is closed by a stopper or closure 8 which is made hollow and which has the bottom portion 9 extending slightly below the shoulder 4. This closure comprises the end walls 9 and 11 joined by the circular Awall 8. TheI walls 9 and 11 extend beyond the intermediate wall 8 forming projections or flanges 9' and l1 whereby a groove 10 is formed intermediate the end of the .clo-

Sure 8. An annularpacking ring l0 of suitable material surrounds and isf carried by the closure 8, and fits in groove l10. The fiange 9 fits the smaller diameter of the receptacle member 3 below the shoulder 4 whereby the packing ring 10 rests on the with the hollow body, the Flange 9 being of smaller diameter thantheflange 11.

The top 11 of the closure is originallyformed with an opening at the upwardly projecting point 13 for the purpose of eX- hausting the air within it, but this opening is of course sealed in the usual way when the article is completed as shown. AA metal cover 12 is preferably placed over'the top of the closure its edge 12 being spun around the upper edge 11 of Athe closure to hold it in place. This cover serves'as a- The ange 11 extends out-v wardly beyond the ring 10. and the pe' ripheral edge 12 of the protecting. metal; l

cover 12 engages the upper edge of the packing ring 12 and holds it in place. The cover 12-has a central cup or-depression 13 to receive the tip 13 of the Wall 11 of the hollow stopper.y The bent or curled edge 12 ofthe protecting, cover .12 with the..

flange 11' provides a wide flange near the =upper`edge of the closure whereby the clo- It will be understood that my device A shape that the inner receptacle can be inserted through the upper end of the outer4 maintains the contents at practically the same temperature whether hot or cold. The outside heat cannot get in any more than the inside heat can get out.

- It will be seen that I haveprovided a i. e., the mouths thereof are substantially the same diameter as the bodies thereof. Bymaking the' two receptales'of such receptacle in manufacturing thev device the expense .and troblebof manufacture is reduced to a minimum and the joints and'connections can be easily made.`

Having described my invention what I claim and desire to secure by Letters-Patent is, l

1. A `hollow walled containercomprising an outer wall, a receptacle `member disposed therein and. joined thereto at its mouth, said lreceptacle member having a neck and a body of different diameters joined by a supporting shoulderv below said mouth, aclosure fitting in the `mouth of saidreceptacle member, and a packing member, and extending vto-a point substantially opposite said shoulder to close the' smaller part of the receptacle member at a point adjacent said shoulder, carried by the closure and fitting between the same andtheneck of Said receptacle packingl member above said shoulder, said member resting on said shoulder.'

2. A hollow walled container comprisingv an outer wall, a receptacle member disposed therein and integrallyV joined thereto-at its mouth, said receptacle member having portions of two different diameters joined by a shoulder, the portion having the greater diameter being above the shoulder, a hollow closure fitting in the mouth of the receptacle member and terminating lslightly below said shoulder, and a packing ring surrounding the closure and disposed above fthe said r j shoulder, said packing ring bearing againstV and resting on said shoulder -whereby-thef` closure'is supported onsaid shoulder by said` packing ring.

3. A double walled container comprising 1 an inner member, an outer member inclosing the sama-'said lmembers being integrallyv unitedv at their mouths, anda spiral member yieldably centering and supporting said 6.07"'inn'er member at its bottom, said spiral mem- \'..fber having the longitudinal axis thereofthrough the spirals substantially coincidingv erwithjzhefaxesgof the inner and outer members.v

"l,V A doublegwalled container comprising and held in lplace by a part of one of said members.

5. A closure for .double walled vessels comprising a hollow exhausted glass body adapted to fit into the mouth of a vessel and having a sealing tip on its upper side and an integral glass flange at the top end thereof, anda metal cover for said sealing tip and the top of said body, said cover having its peripheral edge extending beneath the edge of said integral glass vflange,"whereby saidcover .is permanently secured to said body over said sealing tip and said 'glass flinge is provided with a metal protecting e ge.

6. A closure for double walled vessels comprising a hollow body adapted to-fit into a vessel and having parallel flanges and a sealing tip at its upper end, 'a pa king ring surrounding said' body andv fittingy between said flanges and a protecting metal cover for the top end of said body and the tip and having its edge lextending beneath one of said flanges to securethe cover to the body.

7. A vacuum bottle ,having -spaced walls throughout includingl the neck, a closure spanning the neck, said Vc'osure .having 'spaced end walls extending l terally ofthe closure to provide flanges at the top and bottom thereof, andl a circular wall joining said end walls, and a packing ring between said flanges and ffitting between the circular wall and the inside surface of the neck of the bottle. A l f r 8. A double walled container comprising a one-piece inner receptacle, a one-piece outer wall inclosing theiniier receptacle, a device between thebottom of said receptacle and said outer wall, said outer wall being joined to thelip of :said receptacle after said device, is located in place', said device being capable of yieldingly supporting and centering the receptacle 'whensaid receptacle and wall are joined together. l lv'9. A glass vacuum bottle comprising an initially closedbottom widemouth inner glass receptaclev member, 'an initially substantially'closed-bottom, wide-mouth outer glass member, said members beingfused togetherat their mouths, and means whereby said initially closed bottom, Wide mouth glass members are held spaced apart andthe inner member is Aksu ported and centered within the outer mem er.v

10; A double walled' heat insulated bottle comprising an inner glass receptacle member, anv outer. glass member-inclosin said inner member,"said members being umted at their mouths and having their bodies separated by a space, said inner member having a portion of reduced diameter at its bottom. and supporting and spacing means located between the bottoms of said members comprising a spring having a part surrounding said reduced portion on the lower end of said inner receptacle member and' having a part bearing against said outer member.

11. A double-walled heat insulated container comprising an inner receptacle member, an outer wall inclosing said receptacle, said receptacle being united to said wall at its mouth and being otherwise separated from said wall by a space, and means yieldingly supporting ksaid receptacle at its bottom comprising a spiral member disposed between the bottom of the outer wall and the bottom of said receptacle and having its longitudinal axis within the spirals extending longitudinally of the longitudinal axes of the outer wall and inner receptacle.

12. A double walled heat insulated container comprising an inner receptacle member, an outer member inclosing said recep- -tacle member and united thereto at its mouth, said outer member having a tapering bottom provided with a sealing tlp at its center, and a supporting spring between the bottom of said receptacle member and said outer member and surrounding the axis of said sealing ti pIn testimony whereof I aHiX my signature in presence of two witnesses.

' CHARLES F. P. ANDERS.

Witnesses:

H. E. GRABAN, OSCAR HoKANsoN. 

